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/*
* Debian menu system -- update-menus
* install-menu/install-menu.h
*
* Copyright (C) 1996-2003 Joost Witteveen,
* Copyright (C) 2002-2004 Bill Allombert and Morten Brix Pedersen.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License with
* the Debian GNU/Linux distribution in file /usr/share/common-licenses/GPL;
* if not, write to the Free Software Foundation, Inc., 59 Temple Place,
* Suite 330, Boston, MA 02111-1307 USA
*
*
* Written by Joost Witteveen.
*/
#ifndef INSTALL_MENU_H
#define INSTALL_MENU_H
#include <iostream>
#include <vector>
#include <map>
#include <common.h>
#include <compose.hpp>
#include <parsestream.h>
#include "functions.h"
/*
Grammar of "string"'s:
cat = value | (value cat)
value = const | func | var
const = "\"" .* "\""
var = "$"name
func = name "(" args ")"
args = cat | (args "," cat)
name = [a-z,A-Z,_][a-z,A-Z,_,0-9]*
Structure of container classes
str general container
const contains constant string
cat std::vector of str's
var contains a named variable (like section, title, needs, ...).
func a function (print, ifelse, iffile, ..).
funcN is a templated type, where:
funcN<1> is with 1 arguments
funcN<2> is with 2 arguments
...
Example "str":
"title=" print($title) ", mess:" \
ifelse($longtitle, print(title), $longtitle)
*/
/** Container class. See above documentation. */
class str {
public:
virtual std::ostream &output(std::ostream &o, std::map<std::string, std::string> &menuentry) = 0;
virtual ~str() { };
};
/** Container class. See above documentation. */
class const_str : public str {
std::string data;
public:
const_str(parsestream &i) : data(i.get_stringconst()) { }
/** Output the constant string */
virtual std::ostream &output(std::ostream &o, std::map<std::string, std::string> &menuentry);
};
/** Container class. See above documentation. */
class cat_str : public str {
std::vector<str *> v;
public:
bool is_constant_string();
cat_str(parsestream &);
std::ostream &output(std::ostream &o, std::map<std::string, std::string> &menuentry);
void output(std::map<std::string, std::string> &menuentry);
std::string soutput(std::map<std::string, std::string> &menuentry);
};
/** Container class. See above documentation. */
class var_str : public str {
std::string var_name;
public:
var_str(parsestream &i);
/** Output the contents of the variable */
std::ostream &output(std::ostream &o, std::map<std::string, std::string> &menuentry);
};
class func;
/** Container class. See above documentation. */
class func_str : public str {
std::vector<cat_str *> args;
functions::func *f;
public:
func_str(parsestream &);
/** Output the return value of the function */
std::ostream &output(std::ostream &o, std::map<std::string, std::string> &menuentry);
};
class func_def : public functions::func {
cat_str *f;
std::string func_name;
std::vector<std::string> args_name;
public:
func_def(parsestream &i);
unsigned int nargs() const { return args_name.size(); }
std::ostream &output(std::ostream &, std::vector<cat_str *> &,std::map<std::string, std::string> &);
const char * getName() const { return func_name.c_str(); }
virtual ~func_def() { }
};
/** Class containing info of supported menu needs */
class supportedinfo {
/** Representation of a single supported menu need */
class supinfo {
public:
cat_str *name;
int prec;
};
/** Map containing all supported menu needs */
std::map<std::string, supinfo> supported;
public:
supportedinfo(parsestream &);
/** Checks whether a specified 'supported' exists */
bool supports(std::string&);
void subst(std::map<std::string, std::string> );
};
/** Class containing configurable menu-method data */
class methodinfo {
std::string compt, rcf, exrcf, roots, mainmt, treew, outputenc;
std::string preout, postout;
public:
methodinfo(parsestream &);
bool keep_sections;
cat_str *startmenu, *endmenu, *submenutitle, *hkexclude,
*genmenu, *postrun, *prerun, *remove, *sort, *rootpref, *userpref,
*outputlanguage, *also_run, *preruntest;
bool onlyrunasroot, onlyrunasuser;
bool onlyuniquetitles;
// hint stuff:
bool hint_optimize;
double hint_nentry;
double hint_topnentry;
double hint_mixedpenalty;
double hint_minhintfreq;
double hint_mlpenalty;
int hint_max_ntry;
int hint_max_iter_hint;
bool hint_debug;
int hotkeycase; //0=insensitive, 1=sensitive
const std::string &rcfile() const { return rcf; }
const std::string &examplercfile() const { return exrcf; }
const std::string &mainmenutitle() const { return mainmt; }
const std::string &rootsection() const { return roots; }
const std::string &treewalk() const { return treew; }
const std::string &preoutput() const { return preout; }
const std::string &postoutput() const { return postout; }
const std::string &outputencoding() const { return outputenc; }
cat_str *rootprefix();
cat_str *userprefix();
std::string prefix();
};
extern methodinfo *menumethod;
extern supportedinfo *supported;
extern bool is_root;
extern bool testuniqueness(std::map<std::string, std::string> &menuentry);
const char *ldgettext(const char *lang, const char *domain, const char *msgid);
namespace exceptions {
/** Exception to be thrown when number of arguments to function didn't match */
class narg_mismatch : public except_pi_string {
public:
narg_mismatch(parsestream *p, std::string s) : except_pi_string(p,s) {}
std::string message() const {
return String::compose(_("Number of arguments to function %1 does not match."), msg);
}
};
/** Exception to be thrown when an unknown function was used */
class unknown_function : public except_pi_string {
public:
unknown_function(parsestream *p, std::string s) : except_pi_string(p,s) {}
std::string message() const {
return String::compose(_("Unknown function: \"%1\""), msg);
}
};
/** Exception to be thrown when a function was not defined but used */
class unknown_indirect_function : public except_pi_string {
public:
unknown_indirect_function(parsestream *p, std::string s) : except_pi_string(p,s){}
std::string message() const {
return String::compose(_("Indirectly used, but not defined function: \"%1\""), msg);
}
};
/** Exception to be thrown when a unknown identifier was found in menu-method */
class unknown_ident : public except_pi_string {
public:
unknown_ident(parsestream *p, std::string s) : except_pi_string(p,s) {}
std::string message() const {
return String::compose(_("Unknown identifier: \"%1\""), msg);
}
};
/** Exception to be thrown when encoding conversion failed */
class conversion_error : public except_string {
public:
conversion_error(std::string s) : except_string(s) { }
std::string message() const {
return String::compose(_("Encoding conversion error: \"%1\""), msg);
}
};
}
#endif
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